Door-locking device for cane cars



5 Sheets-Sheetl Nov'. l5, 1927.

W. A. LUCAS DOOR LOCKING DEVICE FOR CANE GARS Filed June 29, 1926 |.II z .IIIQNI IIIII ||IH \N. v QN f mw. ww .rm vm\ xA. T w f\ h -l\(\\\ Lr\ n w w w w f.- w\

Nov. l5, 1927. 1,649,413

v w. A. ,LUCAS DOQR LOCKING DEVICE/FOR NE CARS Filed June 29, 192% ,W70/wry 4 s sneetsfsneet 2,

W. A. LUCAS DOOR LOCKING DEVICE FOR CANE CARS Filed June 29. 1925 3 Sheets-Sheet 3 Nov. 15, 1927. l 1,649,413

70, .ff f4 W Patented Nov. 15, 1927.

UNITED STATES 1,649,413 PATENT OFFICE.l

WALTER A. LUCAS, OF HAWTHORNE, NEW*V JERSEY, ASSIGNOR TO. AMERICAN CAR AND FOUNDRY COMPANY, F NEW YORK, N. Y., A CGR-PORATION OF NEW JERSEY.

DOOR-LOCKING DEVICE FOR CANE CARS.

Application filed June 29, 1926. Serial No. 119,496.

In the drawings:

Fig.` 1 is a partial side view of a cane car with my invention applied thereto, a portion of the car being broken out and omitted;

Fig. 2 is a similar view of one of the door locks shown in Fig. 1, on a much larger scale, certain parts being partly broken away and in vertical section;

Fig. 3 is aplan view of the door locking mechanism, with associated parts of the car in horizontal section as indicated by the line 3 3 in Fig. 4;

Fig. 4 shows a cross-section through the locking mechanism and associatedl parts,

taken as indicated by line 4 4 in Fig. 2;

Fig. 5 is a view similar to Fig. 4, but showing the door unlocked and swung part way open;

Fig. 6 is a fragmentary perspective view of a door-engaging device or member somewhat Vdiierent from that shown in Figs. 2 to 5' Fig.77 is a fragmentary perspective view of an actuating device for the door-engaging member shown in Fig. 6;

' Fig. 7 a is a fragmentary plan view of the type of mechanism shown in Figs. 6 and 7;

Fig. 8 is a view similar to Fig. 2, but showing a somewhat different form of mechanism;

Fig. 9 shows a cross-sect-ion through the mechanism shown in Fig. 8, taken as indicated by the line 9 9 in that figure.

My invention relates to door locks, suitable for railway car doors and the like, .and especially useful for doors of general utility cars, cane cars, etc. I aim to provide a simple, rugged and effective lock; to make it easy and convenient to operate; and to arrange the operating parts so that they shall not get in the way or become a source of ,trouble or danger. I also aim to make the device positively or irreversibly self-locking, so that dependence need not be placed on the voperating device or mechanism to resist the tendency of the load against the door to open it.

Fig. 1 shows a cane car of usual type, with a side door of openwork construct-ion. This door comprises a series of upright I- bars 11 having their upper ends hinged or pivoted at 12 to a longitudinal top rail 13, and secured at their lower ends to a longitudinal lower rail 14 of angle section, which has one flange 15 turned downward (Figs. 2 and 4) and the'other 'liange turned outward. Near theirupper ends, the uprights 11 are also secured to a longitudinal channel bar 16. The door as a whole is braced by a dagonal channel bar 17 secured to the uplrights 11. Aplurality of locks 18 are provided for holding the door shut, mounted at suitable intervals along the. side sill 19 in position to engage the lower liange 15 of the lower door rail 14.

As thus far described, this construction is like that of cane cars already in use.

Referring, now, to Figs. 1 5, it will be seen that each of the locks 18 there shown comprises a securing device or member 20 which is mounted between brackets 21, 21, bolted to the sill 19, and is arranged to turn or swing in a transverse plane. In its upper, inner position, as shown in Figs. 1-4, the member 20 lies in front of and engages the flange 15 at the lower edge of the door; in

`its lower or outer position, as shown in Fig.

5, it lies quite below the flange 15, with amy ple clearness for the door to open. For operating the securing member 20, there is a longitudinally movable axially arranged rod 22, which as shown extends along the sill 19 from lock to lock and serves as a common actuator for all the locks of a door. This rod 22 may conveniently be shifted by means of a hand-lever 23 (Fig. 1) fulcrumed at 24 on the end post 25 of the superstructure of the car, and connected to the adjacent end of the rod by a link 26. This lever 23 may be secured in upright (door-locking) position by means of a ring or link 27 on a slide 28; it `may be released for operation by merely lifting the ring 27 above the upper end of the lever-, and lett-ing the ring fall to one side.

To unlock the door, it is only necessary to release the lever 23 and swing it in the appropriate direction in Fig. 1, to the right. The door may thereafter be re-secured by merely returning the lever 23 to initial position. In other words, the door maybe unlocked and locked by one complete reciprocation or back and forth movement of the lever 23. As the operat-iiig movement of the lever 23 is fore and aft of the car, there is no chance of its projecting excessively from the car side and thus'being asource of trouble or danger. f

iand the openings for it in the brackets 21, 21

are likewise square. As shown in Figs. 1 to 6, the device 2O comprises a barrel-like body portion 31 reduced at its ends to form the trunnions 30, 30, and an arm portion consisting of several transverse webs 32 projecting from the body. of Webs 32 are interconnected and braced together by a longitudinal web 33. In the present instance, the rod 22 actuates the securing device 20 through a screw-like cam action, and the barrel body 31 has one side cut away for about half its circumference with a substantially helical twist, so that its edges 34 and 35 are in effect like screws of large pitch about 180 degrees apart circumferentially of the barrel. rI`he co-relative cam-engaging means on the rod 22 consists of a couple of directly opposite projecting lugs 36, 37 on a square-holed collar 38 i suitably secured to the rod 22, as by means of a. rivet 39 through them. As shown in Fig. 2, the sides of the lugs 36 and 37 that engage the cam surfaces 34 and 35 are inclined in correspondence with them.

Preferably, provision is made for positively locking thedevice or member 20 in door-retaining position, so that the force exerted on the device 20 by the door shall not tend -to reversely actuate the operating rod 22 and lever 23. As shown in Figs. 2 and 4, this is accomplished by the lugs 36, 37 in cooperation with extensions 41, 42 of the cam surfaces 34, 35 parallel with the rod 22. For engaging the surfaces 41, 42, the lugs 36, 37 have surfaces parallel with the rod. Then the lugs 36, 37 are engaged with the surfaces 41 and 42, as most clearly shown in Figs. 2 and 4, the forces tending to open the door can only exert pressure on the lug 36 Without having any tendency to shift the rod 22. TNhen the rod 22 is shifted to the left by the operating lever 23, however, the lug 36 very quickly rides off the surfaces 41, 42 onto the helical surfaces 34, 35, and acts on them to swing the member 20 outward, as already described. e

In Figs. 6, 7, and 7a, I have indicated a different form of operating connection between the actuating rod 22 and the device 20a. In this instance, there is a single round (cylindrical) operating lug 36"L on the rod 22, and the sleeve 31a has a helical slot 34a for it. At the end of the slot 34a is a lock-- rIhe outer ends ing surface 41a for the lug 36a (Fig. 7a). A.

Figs. 8 and 9 illustrate a still diderentv operating connection between the actuating rod 22b and the securing device. 20h. 11n this case, the helical cam surfaces are formed on the rod 22h, by twisting it about degrees as lshown at 44 in Fig. 8. This twisted portion of the rod works with` fairly easy fit in a square opening in a central web 45 in the interior of the barrel 31D. In this instance, the barrel 311 is shown asmade in separable halves, in order to facilitate installation. At one side of the rod' 22h, the halves are secured together by engagement of a iange or lug 46 on the front half, in a notch or groove in a lug or iange 47 on the rear half and by bolts` 48 through lianges or lugs 49 above the rod 22". In this instance, the brackets 2lb, 21h are also made in separable halves, divided along av horizontal plane as shown. y

In Figs. 6, 7, 7n, 8, and 9, various parts and features are marked with the same reference characters as in Figs. 1 5, as a means of dispensing with repetitive description.

Vhat is claimed is: l i

1. door lock of the character-described comprising a securing device rotatable into and out of retaining position withreference to thedoor, and a longitudinally movable actuating rod therefor, said device andl said rod having correlative cam and cam-engaging means for rotating said device when the rod is lmoved as aforesaid.

2. doo-r lock of the character described comprising a securing device swingableinto and out of retaining position with reference to the door, and a longitudinally movable actuating rod therefor, said device and said rod having correlative cam and cam-engaging means for swinging said device when the rod is moved as aforesaid and for irreversibly holding said device in. Vretaining position. Y

3. A door lock of the character described comprising a rotatably mounted securing device swingable into and out of retaining position with reference toV the door, and a longitudinally movable actuator vextending axially through said device and its mounting.

4. A door lock of the character described comprising a rotatably mounted securing device swingable into and out of retaining position with reference to the door, and a longitudinally movable actuator extending axially through said device and its mounting, said device and said actuator having correlative engagement means for locking the device in retaining position.

5. A door lock of the character described comprisingv a rotary retaining device with hollow trunnions, brackets affording bearing for said trunnions, and a longitudinally movable actuating rod for said device eX- tending' through the same and its trunnions and bracket-s.

6. A door loc-k ot the character described comprising a rotary retaining device with hollow trunnions, brackets affording bearing for said trunnions, and a longitudially movable actuating rod tor said device eX- tending through the Same and its trunnions and brackets, said device and said rod having screw means for rotating the device when the rod is shifted, and also engagement means for locking the device in retaining position.

7. A door lock comprising securing means rotatable into? and out of retaining position with respect to the door, a reciprocatory actuator, and cam means interposed between said securing means and actuator 'for rotating the former upon reciprocation of the latter.

8. In a door lock, supporting means, a longitudinally reciprocatory non-rotatable actuatingv rod movable therein and a door latch transversely rockable on said rod in said supporting means.

S). In a door lock, supporting brackets having circular and noncircular seats therein, an actuating rod adapted t serve as a co1nmon actuator movable in said non-circular seats and a. plurality of door latches pivotally mounted in the circular seats on said rod.

l0. In a railway car door locking means, a longitudinally reciprocatory actuating rod, transversely rocltable door latches thereon and supporting brackets for said rod and latches adapted to permit rotation of the latches and prevent rotation of the rod.V

In witness whereof I have hereunto set my hand.

WALTER A. Lucas. 

